423220125257 has 2 divisors, whose sum is σ = 423220125258. Its totient is φ = 423220125256.

The previous prime is 423220125241. The next prime is 423220125271. The reversal of 423220125257 is 752521022324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365963292601 + 57256832656 = 604949^2 + 239284^2 .

It is a cyclic number.

It is not a de Polignac number, because 423220125257 - 2⁴ = 423220125241 is a prime.

It is not a weakly prime, because it can be changed into another prime (423220115257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211610062628 + 211610062629.

It is an arithmetic number, because the mean of its divisors is an integer number (211610062629).

Almost surely, 2^423220125257 is an apocalyptic number.

It is an amenable number.

423220125257 is a deficient number, since it is larger than the sum of its proper divisors (1).

423220125257 is an equidigital number, since it uses as much as digits as its factorization.

423220125257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 423220125257 in words is "four hundred twenty-three billion, two hundred twenty million, one hundred twenty-five thousand, two hundred fifty-seven".